curl --location --request POST 'https://saas-open.vhall.com/v3/users/child/count' \
--header 'platform;' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'app_key=' \
--data-urlencode 'sign_type=' \
--data-urlencode 'signed_at=' \
--data-urlencode 'sign='
{
"code": 200,
"msg": "",
"data": {
"count": 5,
"child_limit": 10,
"available_num": 5
},
"request_id": "c7713b2a-a60c-4f37-88e8-7f9d62968a1b"
}